TH37251B - Off-road tires - Google Patents

Abstract

The DC60 off-road tire (1) consists of a tread section (2) with tread blocks (10, 11) that make up the surrounding area (8). The surrounding area (8) in its base (14) has deflections (13) which are located along the circumference of the tire and each deflection runs outward along the axis of the tire and the depth (d) of each deflection (13) increases inward toward its center (13a), which provides improved traction. The off-road tire (1) consists of a tread section (2) with tread blocks (10, 11) that make up the surrounding area (8). The surrounding area (8) in its base (14) has deflections (13) which are located along the circumference of the tire and each deflection runs outward. Along the axis of the tire and the depth (d) of each depression point (13) increases gradually towards its center (13a), resulting in a greater improvement in the grip strength.

Claims (8)

1. An off-road tire (1) is made up of a section of the tread or tire face (2) arranged in blocks (10, 11), with a surrounding area (8) formed around it, in which the surrounding area (8) is arranged in its rib (14) which has deflections (13). The deflections (13) are arranged along the circumference of the tire and each is made to protrude along the axis of the tire, and the depth (d) of each deflection (13) is made to increase incrementally toward its center (13a) such that in cross-section it is parallel to the plane of the tire bisector (C). The contour of each deflection (13) is a curve with a radius of curvature not less than 2 mm but not more than 100 mm. 2. Off-road tires under claim 1 where each deflection point (13) has an axial length (GL) of 10 to 80% of the tread width (TW). 3. Off-road tires under claim 1 where the circumferential width (GW) of the deflection point (13) shall be between 5 and 95% of the circumferential width (SL) of the bottom (14) of the enclosed area (8) between the blocks (10) adjacent to the deflection point (13). 4. Off-road tires under claim 1 where the maximum depth (d) of each deflection point (13) shall be between 3 and 25% of the radial height (BL) of the block adjacent to the deflection point (13). 5. Off-road tire under claim 1 in which, in a cross-section parallel to the plane of the tire bisector (C), the bottom (14) of the enclosed area (8) has a flattened section (EW) on each side of each deformation point (13), and each deformation point and flattened section (EW) blends into the concave section (17) of the lateral surface of adjacent blocks along the circumference (10, 11). 6. Off-road tires under claim 1 where each deflection point (13) is spaced circumferentially (EW) away from adjacent blocks (10) by a circumferential distance (EW) of at least 5% of the circumferential width (SL) of the bottom (14) of the enclosed area (8) between the adjacent blocks (10). 7. Off-road tire under claim 1 in which each deflection point (13) is centered on the tire bisector (c). 8. Off-road tires under claim 1 where each deflection point (13) is placed on one side of the tire bisector (c).